Port 2564
hp-3000-telnet · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | hp-3000-telnet |
Frequently asked questions
What is port 2564 used for?
Port 2564 is registered with the IANA for hp-3000-telnet (TCP/UDP). Description: HP 3000 NS/VT block mode telnet.
Is port 2564 a well-known port?
No. Port 2564 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 2564 is open?
Locally on Linux with ss -tulpn | grep ':2564\b', on Windows with netstat -ano | findstr :2564. To test a remote host use Test-NetConnection <host> -Port 2564 in PowerShell or nc -zv <host> 2564 on Linux/macOS.
How do I open port 2564 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 2564/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=2564/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 2564" -Direction Inbound -Protocol TCP -LocalPort 2564 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | hp-3000-telnet | HP 3000 NS/VT block mode telnet |
| UDP | hp-3000-telnet | HP 3000 NS/VT block mode telnet |